US PATENT SUBCLASS 53 / 370.9
.~.~.~.~ Comprising means to force heated fluid to contact cover

Current as of: June, 1999
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53 /   HD   PACKAGE MAKING

285  DF  CLOSING PACKAGES AND FILLED RECEPTACLES {7}
370.2  DF  .~ Including provision for pleat of cover overhang {7}
370.7  DF  .~.~ With means to heat or cool seam {5}
370.8  DF  .~.~.~ Spaced from cover during heating or cooling {1}
370.9.~.~.~.~ Comprising means to force heated fluid to contact cover

DEFINITION

Classification: 53/370.9

Comprising means to force heated fluid to contact cover:

(under subclass 370.8) Apparatus including means to supply thermal energy by driving a flowable medium directly into engagement with the surface of the cover that is being treated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

370.8, for closing a package or filled receptacle with means to heat by radiant energy.